FKIE_CVE-2026-48816

Vulnerability from fkie_nvd - Published: 2026-07-14 21:17 - Updated: 2026-07-15 20:23
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 3.1.1, @sigstore/verify derives a transparency-log timestamp from tlogEntries[].integratedTime for bundle v0.2 inclusionProof-only entries even though the inclusion proof path does not cryptographically bind integratedTime, allowing an attacker who can supply an untrusted bundle to influence certificate validity and timestampThreshold verification decisions. This issue is fixed in version 3.1.1.
References
security-advisories@github.comhttps://github.com/sigstore/sigstore-js/commit/f074710a91ea9260a9ac2142345634579843a3cd
security-advisories@github.comhttps://github.com/sigstore/sigstore-js/pull/1659
security-advisories@github.comhttps://github.com/sigstore/sigstore-js/releases/tag/%40sigstore%2Fverify%403.1.1
security-advisories@github.comhttps://github.com/sigstore/sigstore-js/security/advisories/GHSA-xgjw-pm74-86q4
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/sigstore/sigstore-js/security/advisories/GHSA-xgjw-pm74-86q4
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "sigstore-js",
          "vendor": "sigstore",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.1.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 3.1.1, @sigstore/verify derives a transparency-log timestamp from tlogEntries[].integratedTime for bundle v0.2 inclusionProof-only entries even though the inclusion proof path does not cryptographically bind integratedTime, allowing an attacker who can supply an untrusted bundle to influence certificate validity and timestampThreshold verification decisions. This issue is fixed in version 3.1.1."
    }
  ],
  "id": "CVE-2026-48816",
  "lastModified": "2026-07-15T20:23:47.313",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-48816",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-15T14:25:32.204796Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-14T21:17:01.497",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/sigstore/sigstore-js/commit/f074710a91ea9260a9ac2142345634579843a3cd"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/sigstore/sigstore-js/pull/1659"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/sigstore/sigstore-js/releases/tag/%40sigstore%2Fverify%403.1.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/sigstore/sigstore-js/security/advisories/GHSA-xgjw-pm74-86q4"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/sigstore/sigstore-js/security/advisories/GHSA-xgjw-pm74-86q4"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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